package com.borrowed.book.book.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
public class SpringContextUtils implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringContextUtils.applicationContext==null){
            SpringContextUtils.applicationContext=applicationContext;
        }
    }

    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }

    public static Object getBean(String name){return getApplicationContext().getBean(name);}

    public static <T> T getBean(Class<T> clazz) {return getApplicationContext().getBean(clazz);}

    public static <T> T getBean(String name,Class<T> clazz){return getApplicationContext().getBean(name,clazz);}

    public static <T> Map<String,? extends T> getBeansOfType(Class<T> clazz){
        return getApplicationContext().getBeansOfType(clazz);
    }
}
